Another car using a (Capstone) micro turbine is Neil Young's LincVolt"At the centre of the car sit state-of-the-art, mid-mounted micro gas-turbines. These can either generate 140kW (188bhp) to charge the batteries and extend the range of the car to a remarkable 900km (560 miles) – enough to drive from London to Berlin on a single tank – or when in Track mode provide supplementary power directly to the electric motors."
Has anyone used Micro Turbines for a range extender in an electric car off this site? Would be quite interesting to see the results, anyone know?
Cheers mate, I'll give it a read.Another car using a (Capstone) micro turbine is Neil Young's LincVolt
This is an outstanding and imaginative conversion.
Apparently, they have 80% efficiency when the heat is used for energy generation aswell, but could the same principle be applied to a reciprocating engine? I couldn't find much on it to be fair so I have no idea.Last I heard, gas turbines have some significant disadvantages over reciprocating engines. Peak efficiency doesn't compare to a diesel (though power to weight is much better) and the peak efficiency is found in a fairly narrow operating range.
I wish they would say more about those turbine engines.
Beautiful car though.
Correct. While I may never be able to fully suppress my ICE tendancies, one of the things I absolutely hate about them is their net thermal efficiency. Thermal efficiency is the term used because these are heat engines since they convert heat into work. How much of the heat generated that gets turned into usable work is the efficiency of the engine (MPG numbers are meaningless when you examine efficiency within the engine in this manner).Apparently, they have 80% efficiency when the heat is used for energy generation aswell, but could the same principle be applied to a reciprocating engine? I couldn't find much on it to be fair so I have no idea.
Diesels have a lot in common with turbine engines in how they use their fuel. Both engines run a variable mixture ratio (usually on the lean side of stoichiometric unless something is wrong), and both require high pressure fuel delivery systems to inject fuel into the chamber so it can be burned instantly when exposed to maximum compression. Otto cycle engines do not inject fuel at the top of the compression stroke and rely on a stable mixture ratio via throttle body to produce a stable and complete burn. The injection system alone is a big reason why diesels have always been more expensive to build.Can diesels engines run on any renewable fuel? The thing about not needing oil or water cooling seems great. And they sound good too, the only diesel I have heard that sounds good is the Audi Le Mans Diesel.
I was mainly thinking along the lines of aircraft where weight is very important and has a much more noticable effect on the range or efficiency of the vehicle (which is why you won't see big heavy diesels powering airlines even though thermal conversion efficiency is better for the diesel). Road going machines aren't affected as much but every pound does still add up.With the power to weight comment, it seems like it would be suited for a very small conversion, that wanted a range extender, like motorbike perhaps, or a tiny car.
I would have to disagree with that as being impressive. I have a 6000lb diesel pickup that can consistently deliver 24-25 MPG when cruising at 55 MPH. Granted it isn't stock anymore, but still, most of the junk in it is over 20 years old. Considering the horrible drag coefficient and much larger frontal cross section, I would expect the jag to get at least twice the MPGs. Many midsized cars and smaller SUVs can already cruise in the 30 MPG zone these days.Wow, the Jag does 0-100 in 5.5 sec. Subtracting the initial 68 mile all electric range from the 560 miles equals 492 miles and has a 15.8 gallon fuel tank (60 liters) so that is around 31 mpg running on turbine. Considering how heavy that car must be, the turbine's efficiency appears to be pretty good.
I just don't see the point in a 2 seat 3000lb supercar that gets worse fuel economy than the average 5 seat family sedan running on strait gasoline through a conventional powertrain. A diesel sedan or hybrid like the prius will get better still, not to mention the price difference. For all its complexity, I don't see this as any kind of leap forward.Once your truck can do 0-100 in 5.5, top out at 205 mph, get 30+ mpg and use no diesel the first 68 miles I too will be impressed What were the early diesel vehicles like before turbos? Now look have far they have come especially with variable geometry turbos to all but eliminate lag. I would be surprised if they weren't able to improve on the turbine/electric combo given a little more time.
Ouch!Capstone has made micro turbines for years , lots of them out there . used they go for about $15000 . check out there site I haven't been on it for some time .